Car-wheel.



N0. 799,893, PATENTED SEPT. 19j 1905. J. R. DAVIBS.

GAR WHEEL.

APPLICATION HL BBBBBB 14. 1905.

Uni-TED. sTArrns PATENT onnron. JOHN R. DAVIES, WAUKEGAN, ILLINOIS,ASSIGNOR TO .DAVIES CAR VHEEL AND MACHINE COMPANY, OF CHICAGO, ILLINOIS,A CORPO- RATION on 1LLINo1s.

CAR-WHEEL.

Patented sept. 19,1905.

Application iled `January 14, 1905. Serial No. 241,010.

T all LUV/wm, li T11/Cty concer-u:

' Be it known that I, JOHN R. DAvIEs, a citizen ofthe United States,residing at Vaukegan, in the county of Lake and State of Illinois, haveinvented a new and useful Improvement in Car-VVheels, of which thefollowing is a specification.

My invention relates particularly to carwheels having detachable ties,such as are illustrated in my Patent No. 469,681, granted March 1, 1892.

' My primary object is to provide such connections between the centerand tire of a wheel of this character as will enable detachment of thetire to be made without the necessity of drilling holes therein, anoperation which results in destruction of the tire as well as inundueexpense in effecting its -removal.

The invention is illustrated in the accompanying drawings, in which-Figure l represents a view of my improved wheel, partly in sideelevation and partly in section; Fig. 2, a section taken as indicated atline 2 of Fig. l; Fig. 3, an enlarged broken section showing the mannerof withdrawing' a dowel from engagement with the tire; Fig. 4, a sectiontaken as indicated at line 4 of Fig. 3, and Figs. 5 and 6 perspectiveviews of tools employed in effecting withdrawal or sheathing of thedowels to permit removal of the tire.

In the preferred construction, which is herein illustrated, A representsa wheel-center; B, the detachable tire therefor, and C dowels connectingthe tire and wheel-center and normally secured in place by keys C.

The wheel-center and tire may be of any approved construction.Preferably the center is cast in the usual way with chambers a,separated by ribs or spokes a', and the tire is provided internally nearits outer (with respect to the car and track) edge with an annularflange b, which is undercut or beveled to afford a retaining-lip withwhich engages a corresponding lateral annular lip b2, with which thewheel-center is provided at its periphery. By preference a dowel isprovided at the outer extremity of each of three or more spokes, thetire being provided internally with a series of radial recesses c andthe wheel-center with a corresponding series of registering radialrecesses c', which are further, with a relativelynarrowvweldge-accommodating recess cf, which opens into the channel c3at vthe upper side thereof. The keys are preferably round pins, whoseends are upset or kriveted to prevent accidental withdrawal. It isto benoted that each key iits its seat in the corresponding dowel accurately,except for the wedge-accommodating recess, which, however, does notinterfere with the security of the lock upon the dowel.

In the application of the tire the dowels are withdrawn or completelysheathed, and after the tire is in place the dowels are forced outwardlyor projected to lock the tire to the wheel-center by inserting anysuitable wedge implement through the transverse perforations. Thereuponthe keys are inserted and securely riveted to lock the dowels. The tireis usually shrunk upon the center, giving the added security duethereto. .When it is desired to remove a tire, the keys are driven outand a pair of wedge implements Z CZ employed to effect retraction orsheathing of the dowels. The tool d has a head comprising a rounded noseor lug d2 and an opposed wedgesurface CZ3, a shank di, and a lateralgage-lug d5. The head is adapted to enter the perforation or bearing inthe dowel, and the nose is of a shape and size permitting it to enterthe lower portion of the recess c as the wedge d' is driven home. Thewedge CZ is a narrow bar having a wedge-surface d, adapted to engage thesurface d3. It is evident that as the wedge d' is forced in the dowelwill be retracted, the recess c4 accommodating the wedge as the dowelrecedes.

Any suitable means may be employed for engagement with the transversechannels of the dowels to elfect projection and locking of the dowelsand retraction of the same when desired. It is not essential to myinvention IOO in its broadest aspect that different or distinct means beemployed for accomplishing the several results mentioned, as theA gistof my invention lies in providingr means near the inner ends of thedowels for effecting their retraction through the medium of any suit'-able devices engaging the dowels. This enables the tire, by far the mostexpensive part of the wheel, to be saved in case of injury to the centerand facilitates and" cheapens the operation of removing the tire.

It is noteworthy that the flange connection' between the wheel-centerand tire is at the edge of the tire"opposite the edge which is providedwith the usual rail-engaging flange. Thus the lateral thrust upon thetire through the wheel-center is met largely by the flange connection.

Changes in form anddetails of construction are contemplated. Hence-noundue limitation should be understood` from the foregoing'de.- taileddescription.

WhatI regard as new, and desireto secure'by Letters Patent, is-

1. The combination with awheel-center and tire having registeringrecesses, of a dowelpin joining said parts having its inner'end equippedwith a bearing through which pressure may be exerted in drawingthedowel-pin inwardly to free it from engagement with the tire, for'thepurpose set forth.

2. The combination with a tire having internal recesses, and a centerhaving registering recesses and transverse channels intersecting thesame, of dowel-pins having stems provided with transverse channels, andmeans entered insaid transverse channels and securing the dowel-pins inplace, for the purpose set Jforth.

3; The combination with a tire having interna-lrecesses, and acenterhavingregistering recesses and transverse channels intersectinglthe same, of dowels having transverse key-receiving channels andnarrower wedgereceiving channels opening thereinto,and keys securingsaid dowels in place, the wedge-receiving channels serving toaccommodate a relatively narrow wedge in the operation of withdrawingthe dowel, for the purpose set forth.

4. The combination' of a tire havingA atone edge an externalrail-engaging flange and at lthe opposite edge an internalcenter-engaging flange, a' wheel-center engaging said secondnamedflange, normally projected radial dowels connecting the tireand centerand provided within the center'with transverse channels, andldowel-locking keys entered in said transverse channels, for the purposeset forth.

5. The combination of a tire having, in integral formation, at one edgean external railengaging iian'ge and at the opposite edge an internalcenter-engaging ilange,a wheel-center engaging said second-named 'ange,normally projected radial dowel-pins connecting the tire and centerr andprovided within the center with bearings through which force may beexerted to retract the dowel-pins, and transverse dowel-locking keyscarried by the wheelcenter, for'the purpose set forth.

JOHN R; DAVIES.

In presence of'- Fl M. WIRTZ, J. H; LANDES.

